import { describe, it, expect } from 'vitest';
import { createRegistry } from '../../../lib/ai/agent/registry.js';

describe('tool registry', () => {
  const def = {
    name: 'echo',
    description: 'echo back',
    input_schema: { type: 'object', properties: { x: { type: 'string' } }, required: ['x'] },
    handler: async ({ x }) => ({ ok: true, x })
  };

  it('registers and retrieves a tool', () => {
    const r = createRegistry();
    r.registerTool(def);
    expect(r.getTool('echo')).toBe(def);
    expect(r.listTools().map(t => t.name)).toEqual(['echo']);
  });

  it('rejects duplicate names', () => {
    const r = createRegistry();
    r.registerTool(def);
    expect(() => r.registerTool(def)).toThrow(/already registered/);
  });

  it('serialises to the Anthropic tools shape (no handler leak)', () => {
    const r = createRegistry();
    r.registerTool(def);
    expect(r.toAnthropicTools()).toEqual([
      { name: 'echo', description: 'echo back', input_schema: def.input_schema }
    ]);
  });
});